Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering

This paper presents research on the effects of the addition of various contents of graphene oxide and sintering temperature on the mechanical, tribological, and electrical characteristics of WC-ZrO<sub>2</sub> composites. Wet processing and spark plasma sintering provided dense samples w...

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Main Authors: Anton Smirnov, Yuri Pristinskiy, Nestor Washington Solis Pinargote, Yaroslav Meleshkin, Pavel Podrabinnik, Marina Volosova, Sergey Grigoriev
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Sci
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Online Access:https://www.mdpi.com/2413-4155/6/4/82
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author Anton Smirnov
Yuri Pristinskiy
Nestor Washington Solis Pinargote
Yaroslav Meleshkin
Pavel Podrabinnik
Marina Volosova
Sergey Grigoriev
author_facet Anton Smirnov
Yuri Pristinskiy
Nestor Washington Solis Pinargote
Yaroslav Meleshkin
Pavel Podrabinnik
Marina Volosova
Sergey Grigoriev
author_sort Anton Smirnov
collection DOAJ
description This paper presents research on the effects of the addition of various contents of graphene oxide and sintering temperature on the mechanical, tribological, and electrical characteristics of WC-ZrO<sub>2</sub> composites. Wet processing and spark plasma sintering provided dense samples with simultaneous reduction of graphene oxide (rGO) during sintering. The obtained results showed that the best mechanical properties were observed at a sintering temperature of 1700 °C in samples with 0.5 vol.% rGO content; namely, indentation fracture toughness (5.8 ± 0.4 MPa·m<sup>1/2</sup>) and flexural strength (872 ± 43 MPa) increased by 9% and 24.3% compared with the sample without rGO. In addition to improved mechanical performance, rGO-reinforced composites exhibited lower wear rates and friction coefficients than non-rGO composites, due to the formation of a graphitic lubricating tribolayer on worn surfaces and counterbodies in a friction pair, which provided sufficient lubrication to reduce the coefficient of friction and wear rate. The resulting composites also showed low electrical resistivity, suggesting the possibility of using electrical discharge machining to manufacture ceramic products of complex shapes from them.
format Article
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institution Kabale University
issn 2413-4155
language English
publishDate 2024-12-01
publisher MDPI AG
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series Sci
spelling doaj-art-d7c25e832a7040a0bdf7d0fe9499d5562024-12-27T14:52:09ZengMDPI AGSci2413-41552024-12-01648210.3390/sci6040082Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma SinteringAnton Smirnov0Yuri Pristinskiy1Nestor Washington Solis Pinargote2Yaroslav Meleshkin3Pavel Podrabinnik4Marina Volosova5Sergey Grigoriev6Spark Plasma Sintering Research Laboratory, Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, RussiaSpark Plasma Sintering Research Laboratory, Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, RussiaSpark Plasma Sintering Research Laboratory, Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, RussiaSpark Plasma Sintering Research Laboratory, Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, RussiaSpark Plasma Sintering Research Laboratory, Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, RussiaSpark Plasma Sintering Research Laboratory, Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, RussiaSpark Plasma Sintering Research Laboratory, Department of High-Efficiency Machining Technologies, Moscow State University of Technology “STANKIN”, Vadkovsky per. 1, Moscow 127055, RussiaThis paper presents research on the effects of the addition of various contents of graphene oxide and sintering temperature on the mechanical, tribological, and electrical characteristics of WC-ZrO<sub>2</sub> composites. Wet processing and spark plasma sintering provided dense samples with simultaneous reduction of graphene oxide (rGO) during sintering. The obtained results showed that the best mechanical properties were observed at a sintering temperature of 1700 °C in samples with 0.5 vol.% rGO content; namely, indentation fracture toughness (5.8 ± 0.4 MPa·m<sup>1/2</sup>) and flexural strength (872 ± 43 MPa) increased by 9% and 24.3% compared with the sample without rGO. In addition to improved mechanical performance, rGO-reinforced composites exhibited lower wear rates and friction coefficients than non-rGO composites, due to the formation of a graphitic lubricating tribolayer on worn surfaces and counterbodies in a friction pair, which provided sufficient lubrication to reduce the coefficient of friction and wear rate. The resulting composites also showed low electrical resistivity, suggesting the possibility of using electrical discharge machining to manufacture ceramic products of complex shapes from them.https://www.mdpi.com/2413-4155/6/4/82tungsten carbidegraphene oxidezirconiamechanical propertiesfriction coefficientwear resistance
spellingShingle Anton Smirnov
Yuri Pristinskiy
Nestor Washington Solis Pinargote
Yaroslav Meleshkin
Pavel Podrabinnik
Marina Volosova
Sergey Grigoriev
Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering
Sci
tungsten carbide
graphene oxide
zirconia
mechanical properties
friction coefficient
wear resistance
title Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering
title_full Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering
title_fullStr Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering
title_full_unstemmed Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering
title_short Mechanical Performance and Tribological Behavior of WC-ZrO<sub>2</sub> Composites with Different Content of Graphene Oxide Fabricated by Spark Plasma Sintering
title_sort mechanical performance and tribological behavior of wc zro sub 2 sub composites with different content of graphene oxide fabricated by spark plasma sintering
topic tungsten carbide
graphene oxide
zirconia
mechanical properties
friction coefficient
wear resistance
url https://www.mdpi.com/2413-4155/6/4/82
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